First arch installed for new Portal Bridge; ... “When the new tunnels open, you’ll have four tracks all the way into New York with modern signals, modern catenary,” Corbett said.

The first arch of three that will make up the $1.6 billion Portal North Bridge in Kearny was floated down the Hudson River and up the Hackensack Wednesday.

NJ Transit marked groundbreaking for the next phase of the new Raritan River Bridge — construction of a new center span — ...

Her mathematical models respond to the failings of the inverted parabola and the catenary form, classical theory’s only two existing concepts for an optimal arch which both have weak points.

In retrospect, history’s march into the future looks like a smooth catenary arch towards the present. But some technologies don’t make it. Sometimes, grand visions of the future only last for ...

Construction continues at Santiago Calatrava‘s bold Margaret Hunt Hill Bridge in Dallas after it’s signature arch was topped off in June. The cable-stayed bridge is one of three planned as ...

The shape of the Arch is an Inverted Catenary Curve. Creeper Derricks were used to build the arch - slowly going up the sides as it increased in height. Then the Stabilizing Truss was installed to ...

NEARY: We've been told that the Gateway Arch in St. Louis is not even a true catenary or catenary curve. Prof. DEVLIN: No, it can't be, because it's got thickness, for one thing.

First arch installed for new Portal Bridge; ... “When the new tunnels open, you’ll have four tracks all the way into New York with modern signals, modern catenary,” Corbett said.